Caicó weather in October
In October, Caicó sees average daytime highs of 36°C and overnight lows near 23°C, with 4 mm of rain across 0.3 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 65% of the time in October, and the air most often feels humid.
Daylight stretches from about 12 h 06 min at the start of October to 12 h 12 min by month's end. Set against the rest of the year, October is Caicó's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Caicó's year-round climate.
- Daytime high
- 36°
- 3rd warmest
- Overnight low
- 23°
- 5th coldest
- Rainfall
- 4 mm
- 0.3 wet days
- Daylight
- 12 h 06 min
- 5:09 AM – 5:18 PM
- Cloud cover
- 34%
- 2nd clearest
- Wind
- 18 km/h
- 3rd windiest
- Solar energy
- 7.09 kWh/m²
- Travel score
- 2.7
- out of 10
Caicó is human settlement in Brazil.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Day-to-day highs hold fairly steady near 36°C through the month.
A typical October day in Caicó reaches about 36°C in the afternoon and slips back to 23°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 37°C. Set against its neighbours, October runs about 1°C warmer than September and on par with November.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 36 | 22 |
| 2 | 36 | 22 |
| 3 | 36 | 22 |
| 4 | 36 | 22 |
| 5 | 36 | 22 |
| 6 | 36 | 22 |
| 7 | 36 | 22 |
| 8 | 36 | 22 |
| 9 | 36 | 22 |
| 10 | 36 | 22 |
| 11 | 36 | 23 |
| 12 | 36 | 23 |
| 13 | 36 | 23 |
| 14 | 36 | 23 |
| 15 | 36 | 23 |
| 16 | 36 | 23 |
| 17 | 36 | 23 |
| 18 | 36 | 23 |
| 19 | 36 | 23 |
| 20 | 36 | 23 |
| 21 | 36 | 23 |
| 22 | 36 | 23 |
| 23 | 36 | 23 |
| 24 | 36 | 23 |
| 25 | 36 | 23 |
| 26 | 36 | 23 |
| 27 | 36 | 23 |
| 28 | 36 | 23 |
| 29 | 36 | 23 |
| 30 | 36 | 23 |
| 31 | 36 | 23 |
How October really feels in Caicó
Once humidity and wind are folded in, October averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Caicó weather by month
How October compares with the rest of the year at a glance. October is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 35° / 24° | 59 | 7 | 12.3 | 2.6 |
| Feb | 35° / 24° | 56 | 8.4 | 12.2 | 2.6 |
| Mar | 34° / 24° | 101 | 11.8 | 12 | 2.7 |
| Apr | 34° / 24° | 67 | 10.3 | 11.9 | 3.1 |
| May | 33° / 23° | 30 | 5.5 | 11.7 | 3.6 |
| Jun | 32° / 22° | 19 | 3.4 | 11.6 | 4.4 |
| Jul | 32° / 21° | 12 | 2 | 11.7 | 4.6 |
| Aug | 33° / 21° | 5 | 0.4 | 11.8 | 4.3 |
| Sep | 35° / 22° | 1 | 0.1 | 12 | 3.4 |
| Oct | 36° / 23° | 4 | 0.3 | 12.1 | 2.7 |
| Nov | 36° / 23° | 1 | 0.2 | 12.3 | 2.5 |
| Dec | 36° / 24° | 11 | 1.9 | 12.4 | 2.5 |
Cloud cover in October
The sky is clear or mostly clear about 65% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 91 | 91 | 91 | 89 | 89 | 88 | 88 | 87 | 85 | 85 | 84 | 84 | 84 | 84 | 84 | 83 | 83 | 82 | 81 | 81 | 81 | 80 | 80 | 80 | 79 | 79 | 79 | 79 | 79 | 79 | 79 |
| Cloudier (%) | 9 | 9 | 9 | 11 | 11 | 12 | 12 | 13 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 19 | 19 | 19 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 91 | 9 |
| 2 | 91 | 9 |
| 3 | 91 | 9 |
| 4 | 89 | 11 |
| 5 | 89 | 11 |
| 6 | 88 | 12 |
| 7 | 88 | 12 |
| 8 | 87 | 13 |
| 9 | 85 | 15 |
| 10 | 85 | 15 |
| 11 | 84 | 16 |
| 12 | 84 | 16 |
| 13 | 84 | 16 |
| 14 | 84 | 16 |
| 15 | 84 | 16 |
| 16 | 83 | 17 |
| 17 | 83 | 17 |
| 18 | 82 | 18 |
| 19 | 81 | 19 |
| 20 | 81 | 19 |
| 21 | 81 | 19 |
| 22 | 80 | 20 |
| 23 | 80 | 20 |
| 24 | 80 | 20 |
| 25 | 79 | 21 |
| 26 | 79 | 21 |
| 27 | 79 | 21 |
| 28 | 79 | 21 |
| 29 | 79 | 21 |
| 30 | 79 | 21 |
| 31 | 79 | 21 |
Chance of precipitation in October
Caicó gets around 4 mm of rain over 0.3 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 1% and peaks near 2% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 |
| Rain chance (%) | |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1 |
| 12 | 1 |
| 13 | 1 |
| 14 | 1 |
| 15 | 1 |
| 16 | 1 |
| 17 | 1 |
| 18 | 1 |
| 19 | 1 |
| 20 | 1 |
| 21 | 1 |
| 22 | 2 |
| 23 | 2 |
| 24 | 2 |
| 25 | 2 |
| 26 | 2 |
| 27 | 2 |
| 28 | 2 |
| 29 | 2 |
| 30 | 1 |
| 31 | 1 |
Humidity in October
Most of October feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the humid band about 74% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 4 |
| Humid (%) | 80 | 80 | 79 | 79 | 79 | 78 | 78 | 79 | 78 | 78 | 77 | 77 | 77 | 76 | 76 | 75 | 75 | 74 | 74 | 72 | 71 | 71 | 70 | 70 | 70 | 69 | 69 | 69 | 68 | 70 | 70 |
| Muggy (%) | 10 | 10 | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 14 | 14 | 15 | 16 | 16 | 17 | 18 | 19 | 19 | 20 | 21 | 22 | 23 | 23 | 24 | 25 | 25 | 25 | 26 | 26 | 26 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|
| 1 | 10 | 80 | 10 | 0 |
| 2 | 10 | 80 | 10 | 0 |
| 3 | 10 | 79 | 11 | 0 |
| 4 | 10 | 79 | 11 | 0 |
| 5 | 10 | 79 | 11 | 0 |
| 6 | 10 | 78 | 12 | 0 |
| 7 | 10 | 78 | 12 | 0 |
| 8 | 9 | 79 | 12 | 0 |
| 9 | 9 | 78 | 13 | 0 |
| 10 | 9 | 78 | 13 | 0 |
| 11 | 9 | 77 | 14 | 0 |
| 12 | 9 | 77 | 14 | 0 |
| 13 | 8 | 77 | 15 | 0 |
| 14 | 8 | 76 | 16 | 0 |
| 15 | 8 | 76 | 16 | 0 |
| 16 | 8 | 75 | 17 | 0 |
| 17 | 7 | 75 | 18 | 0 |
| 18 | 7 | 74 | 19 | 0 |
| 19 | 7 | 74 | 19 | 0 |
| 20 | 7 | 72 | 20 | 1 |
| 21 | 7 | 71 | 21 | 1 |
| 22 | 6 | 71 | 22 | 1 |
| 23 | 6 | 70 | 23 | 1 |
| 24 | 6 | 70 | 23 | 1 |
| 25 | 5 | 70 | 24 | 1 |
| 26 | 5 | 69 | 25 | 1 |
| 27 | 5 | 69 | 25 | 1 |
| 28 | 5 | 69 | 25 | 1 |
| 29 | 5 | 68 | 26 | 1 |
| 30 | 4 | 70 | 26 | 0 |
| 31 | 4 | 70 | 26 | 0 |
Wind in October
Winds average 18 km/h in October.
Across October, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 19 | light breeze |
| 2 | 19 | light breeze |
| 3 | 19 | light breeze |
| 4 | 19 | light breeze |
| 5 | 19 | light breeze |
| 6 | 19 | light breeze |
| 7 | 19 | light breeze |
| 8 | 19 | light breeze |
| 9 | 19 | light breeze |
| 10 | 19 | light breeze |
| 11 | 19 | light breeze |
| 12 | 19 | light breeze |
| 13 | 19 | light breeze |
| 14 | 19 | light breeze |
| 15 | 19 | light breeze |
| 16 | 19 | light breeze |
| 17 | 18 | light breeze |
| 18 | 18 | light breeze |
| 19 | 18 | light breeze |
| 20 | 18 | light breeze |
| 21 | 18 | light breeze |
| 22 | 18 | light breeze |
| 23 | 18 | light breeze |
| 24 | 18 | light breeze |
| 25 | 18 | light breeze |
| 26 | 18 | light breeze |
| 27 | 18 | light breeze |
| 28 | 18 | light breeze |
| 29 | 18 | light breeze |
| 30 | 18 | light breeze |
| 31 | 18 | light breeze |
Sunrise & sunset in October
Daylight runs from about 12 h 06 min at the start of October to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over October. Sunrise moves from 5:16 AM to 5:05 AM, and sunset from 5:19 PM to 5:19 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 |
| Sunrise (AM) | 5:16 | 5:15 | 5:15 | 5:14 | 5:14 | 5:13 | 5:13 | 5:12 | 5:12 | 5:11 | 5:11 | 5:11 | 5:10 | 5:10 | 5:09 | 5:09 | 5:09 | 5:08 | 5:08 | 5:08 | 5:07 | 5:07 | 5:07 | 5:07 | 5:06 | 5:06 | 5:06 | 5:06 | 5:05 | 5:05 | 5:05 |
| Sunset (PM) | 5:19 | 5:19 | 5:19 | 5:19 | 5:19 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:18 | 5:19 | 5:19 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.1 | 5:16 | 5:19 |
| 2 | 12.1 | 5:15 | 5:19 |
| 3 | 12.1 | 5:15 | 5:19 |
| 4 | 12.1 | 5:14 | 5:19 |
| 5 | 12.1 | 5:14 | 5:19 |
| 6 | 12.1 | 5:13 | 5:18 |
| 7 | 12.1 | 5:13 | 5:18 |
| 8 | 12.1 | 5:12 | 5:18 |
| 9 | 12.1 | 5:12 | 5:18 |
| 10 | 12.1 | 5:11 | 5:18 |
| 11 | 12.1 | 5:11 | 5:18 |
| 12 | 12.1 | 5:11 | 5:18 |
| 13 | 12.1 | 5:10 | 5:18 |
| 14 | 12.1 | 5:10 | 5:18 |
| 15 | 12.1 | 5:09 | 5:18 |
| 16 | 12.1 | 5:09 | 5:18 |
| 17 | 12.2 | 5:09 | 5:18 |
| 18 | 12.2 | 5:08 | 5:18 |
| 19 | 12.2 | 5:08 | 5:18 |
| 20 | 12.2 | 5:08 | 5:18 |
| 21 | 12.2 | 5:07 | 5:18 |
| 22 | 12.2 | 5:07 | 5:18 |
| 23 | 12.2 | 5:07 | 5:18 |
| 24 | 12.2 | 5:07 | 5:18 |
| 25 | 12.2 | 5:06 | 5:18 |
| 26 | 12.2 | 5:06 | 5:18 |
| 27 | 12.2 | 5:06 | 5:18 |
| 28 | 12.2 | 5:06 | 5:18 |
| 29 | 12.2 | 5:05 | 5:18 |
| 30 | 12.2 | 5:05 | 5:19 |
| 31 | 12.2 | 5:05 | 5:19 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 7.09 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 4.72 kWh/m² to a high of 7.09 kWh/m² in October across the year — October's 7.09 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 7.1 | Intense |
| 2 | 7.1 | Intense |
| 3 | 7.1 | Intense |
| 4 | 7.1 | Intense |
| 5 | 7.1 | Intense |
| 6 | 7.1 | Intense |
| 7 | 7.1 | Intense |
| 8 | 7.1 | Intense |
| 9 | 7.1 | Intense |
| 10 | 7.1 | Intense |
| 11 | 7.1 | Intense |
| 12 | 7.1 | Intense |
| 13 | 7.1 | Intense |
| 14 | 7.1 | Intense |
| 15 | 7.1 | Intense |
| 16 | 7.1 | Intense |
| 17 | 7.1 | Intense |
| 18 | 7.1 | Intense |
| 19 | 7.1 | Intense |
| 20 | 7.1 | Intense |
| 21 | 7.1 | Intense |
| 22 | 7.1 | Intense |
| 23 | 7.1 | Intense |
| 24 | 7.1 | Intense |
| 25 | 7.1 | Intense |
| 26 | 7.1 | Intense |
| 27 | 7.1 | Intense |
| 28 | 7.1 | Intense |
| 29 | 7.1 | Intense |
| 30 | 7.1 | Intense |
| 31 | 7.1 | Intense |
Is October a good time to visit Caicó?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a weaker month for outdoor sightseeing in Caicó. The water and warmth also suit a beach or pool day.
What to pack for Caicó in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Caicó sees daytime highs around 36°C and nights near 23°C. Pack light clothes and sun protection.
UV index in Caicó in October
Clear-sky midday UV in October peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Caicó peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 15 | 15 | 14 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Caicó in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Caicó is worst in October — around 21 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (July, 5 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 9 | 8 | 8 | 7 | 6 | 5 | 13 | 20 | 21 | 19 | 16 |
| Level | Moderate | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 9 | Good |
| Mar | 8 | Good |
| Apr | 8 | Good |
| May | 7 | Good |
| Jun | 6 | Good |
| Jul | 5 | Good |
| Aug | 13 | Moderate |
| Sep | 20 | Moderate |
| Oct | 21 | Moderate |
| Nov | 19 | Moderate |
| Dec | 16 | Moderate |
Where is Caicó?
Caicó sits at 6.5°S, 37.1°W, 161 m above sea level, in Brazil. The nearest listed city is Jucurutu, 48 km away.
Topography around Caicó
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Caicó.
Within 3 km, the terrain around Caicó has only modest variations in elevation — a maximum elevation change of 54 m around an average of 162 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 499 m; within 80 km, large variations in elevation — a maximum elevation change of 867 m.
The land around Caicó is covered by shrubs (36%), grassland (31%) and artificial surfaces (27%) within 3 km, shrubs (69%) and grassland (26%) within 16 km, and shrubs (77%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Caicó (-6.4583°, -37.0978°, elevation 161 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).